Smith



(Model.)

HYDRANT.

No. 560,114. y Patented May 12, 1896.

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GEORGE WASHINGTON SMITH, OF MAYSVILIIE, KENTUCKY.

HYDRANT.

SPECIFICATION forming part of Letters Patent No. 560,114, dated May 12,1896.

Application filed September 9, 1895. Serial No. 562,024. (Model.)

To all whom t may concern:

Be it known that I, GEORGE WASHINGTON SMITH, a citizen of the UnitedStates, residing at Maysville, in the county of Mason and State ofKentucky, have invented certain new and useful Improvements inIIydrants, of which the following is a full, clear, and exactspecification.

This invention relates to hydrants designed to connect by a service-pipewith the watermaiu in the street.

The object of my invention is to provide new and improved means forconveniently and quickly removing and replacing the valvecasing and itsvalve-seat for repairs without the necessity oi digging or excavatingthe ground to withdraw the hydrant-stock in order to gain access to thevalve-casing and valve, whereby the valve-seat and its casing areconveniently accessible and can be removed or repairs or renewal andreadily replaced with comparatively little labor and a materialreduction of the expense attending repairs to the valve-seat orvalve-casin g where the ground requires to be dug or excavated towithdraw the entire hydrant-stock.

The object of my invention is accomplished by the features ofconstruction and the combination or arrangement of parts hereinafterdescribed and claimed, reference being made to the accompanyingdrawings, in which- Figure 1 is a vertical central sectional view of thelower end portion of a hydrant embodying my invention. Fig. 2 is aperspective view of the valve-casing. Fig. 3 is a detail side elevationof the hydrant-valve, and Fig. e is a broken side elevation of thewrench for removing and replacing the valve-casing.

In order to enable those skilled in the art to make and use myinvention, Iwill now describe the same in detail, referring to thedrawings, wherein rlhe numeral 1 indicates the metallic castmetal baseof a cylindrical casing 2, which latter is in practice of a lengthsucient to extend the required distance above the surface of the ground.The metallic base and cylindrical casing constitute the hydrantstock,and the base is constructed with two screw-threadedsockets 3 and et, ofdiierent diameter, the inner screw-socket 4t being approximatelyone-half the diam eter of the outer screw-socket 3. The cylindricalcasino` 2 of the hydrant-stock is provided with an external screw-threadon its lower end which screws into the socket 3, and the base 1 isprovided with a central chamber 5 and two opposite screw-threadedopenings 6 and 7, either of which may be connected with the water-main lin the street through the medium of the usual service-pi pe, the otherorifice being closed by screw-plug 8.

The valve-casing 9 is composed of a cylindrical tube having its lower end portion constructed with a screw-threaded nipple 10, which screws intothe screw-socket et in the metallic base. The nipple 10 is of a diameterconsiderably less than the body portion of the valve-casing 9, so thatthe latter rests upon the metallic base around the screw-socket i whenthe nipple 10is screwed into the latter, thus providing a strong andsubstantial structure. The nipple 10 contains a tube 12,which issoldered thereinto and projects into the valve-casing at its upper endfor the purpose of constituting a valve-seat upon which thehydrant-valve seats for the purpose of closing communication between thechamber 5 of the metallic base 1 and the interior of the valve-casing.

The hydrant-valve may be of any construction suitable for the purpose,but preferably it comprises a valve-face 13, of leather or otheriiexible material, secured to the metallic body 14 of the valve by ametal screw 15. The valve-body is formed with lateral inletorifices 16,above which is located a cupshaped leather or other suitable disk 17,all in such manner that when the valve is raised from its seat in thevalve-casing the water flows through the tube 12 into the valve-casingand through the inlet-orifices 16 to the tubular valve-stem 18. When thewater is flowing through the valve, thecup-shaped leather disk 17 isexpanded against the internal surface of the valve-casing, so that thewater is compelled to iiow laterally into the valve and through the sameto the tubular valve-stem.

The upper end portion of the valve-casing is expanded laterally andconstructed with oppositely-arranged angular slots 19, which, as hereshown, are T-shaped in form. These angular slots in the upper end of.the valve- IOO casing serve for receiving an instrument by which tounscrew the valve-casing and lift it out of the hydrant-casing. For thispurpose it is essential that all parts of the valvecasing be of adiameter less than the diameter (and preferably considerably less) ofthe hydrant-casing 2.

The instrument for unsere wing and removing and replacing thevalve-casing is preferably composed of a stem 20, Fig. 4, having asuitable handle 2l at its upper end and a large cylindrical head 22 atits lower end of a diameter approximatelythe same as the interior of thevalve-casing. The expanded upper portion of the cylindrical head 22 isconstructed witha lateral stud 23, adapted to enter into engagement witheither one of the angular or T-shaped slots 19, so that when the stud isengaged with one of these slots and the stem 2O is rotated in the properdirection the valve-casing is unscrewed and can be lifted out of thehydrant-casing'by withdrawing the stem 2O therefrom. lVhen thevalvecasing has been Withdrawn from the hydrant-casing, the valve-seat,composed of the tube l2, can be unsoldered and a new valve substitutedtherefor, or any other necessary repairs can be made to the valve-casing in a very simple and economical manner.

My invention provides novel, simple, eflicient, and economical means forremoving, repairing, an'd replacing the valve-Casin g and valve of ahydrant without digging or excavating and withdrawing the hydrant-stockfrom the ground, thereby entirely avoiding the expense incident to suchwork and enabling the valve and its adjuncts to be easily repaired orrenewed at comparatively little expense.

It will be understood that when the valvecasing is to be removed thesupply of water through the service-pipe to the base of the hydrant iscut off by the usual stop-cock.

llaving thus described my invention, what I claim is The combination ofthe hydrant-base having two screw-threaded sockets of differentdiameter, the inner one of least diameter being arranged centrally ofsaid base, a hydrant casing screwed into the socket of greatestdiameter, and a Valve-casing provided at its lower end with ascrew-threaded nipple containing a removable valve-seat and screwed intothe said central screw-threaded socket of the base, said valve-casingcontaining a removable valve and constructed at its upper end withoppositely arranged T- sha-pcd slots for receiving a lateral stud on thehead of an instrument designed to unscrew the valve-casing,substantially as and for the purposes described.

GEORGE WASIIIXGTON SMITH. iVitnesses:

lV. S. FRANK, C. S. VARICK.

